Alopecia areata forms smooth bald circular or oval patches of hair loss anywhere on the body. The scalp and beard are the most common areas for the patches of hair loss. The patches of hair loss can progress to total hair loss of the scalp which is called alopecia totalis or loss of all body hair which is called alopecia universalis. An auto- immune skin problem is the cause of alopecia areata.
What is an auto- immune skin problem?
An auto-immune skin problem occurs when a group of white blood cells attack other healthy cells of the skin or hair follicle. White blood cells are responsible for circulating our bodies looking to eliminate infectious and abnormal cells.
What triggers an auto immune skin problem?
The cause of the auto- immune problem is unknown. According to the International Association of Trichology, David Salinger, says “a genetic predisposition, vaccinations, viral and bacterial infections, trauma to the skin, stress, or being exposed to any substance that becomes an antigen to the body” may trigger alopecia areata.
Alopecia areata is a self-correcting type of hair loss and the hair regrows on its own without the need of treatment. The hair loss happens sporadically. The hair regrowth can take months, or years.